Home / 2,138.35-3,201.74-1,110.19

Finding the Fourth Proportional to 2,138.35, 3,201.74 and 1,110.19

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Solution

The fourth proportional to 2,138.35, 3,201.74 and 1,110.19 is: 1,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.35 : 3,201.74 = 1,110.19 : x
  2. Step 2: Convert to fraction form
    2,138.35/3,201.74 = 1,110.19/x
  3. Step 3: Cross multiply
    2,138.35x = 3,201.74 × 1,110.19
  4. Step 4: Simplify right side
    2,138.35x = 3,554,534.18
  5. Step 5: Solve for x
    x = 3,554,534.18/2,138.35
  6. Step 6: Final answer
    x = 1,662.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.